In his YouTube video "3D Printing: How to Easily Customize the Size of Objects," David Gewirtz takes us through all of the steps within his MakerBot Desktop slicing program to customize a Thingiverse cord holder so he has four different sizes in the end. Customizing pre-designed 3D objects is possible, and you can learn to do it yourself even if you have no previous design experience. You can check this video out if you are interested in making your own "cord management system" or if you want to learn how to customize other pre-designed objects. Read more at 3DPrint.com: http://3dprint.com/118091/customize-object-sizes/